Engine.



C. 'W. SHARTLE.

ENGINE. APPLICATION mm AUG. 5. 19:6.-

1,225,874. Patented May15; 1917.

' I c a m Wfihartze,

UNITE-D S'IATES CHARLES W. SBAHTLE, OF MIDDLETOWN, OHIO.

PATENT OFFICE.

ENGINE.

Specification of Letters Patent.-

Patented May 15, 191.7.

Application flied August 5,1818. Serial No. 143,216.

the art of making pulp l'o 1;,the n:infiiac-ture of paper. The olliceof the Jo rdnnengine is to reduce or grind th'e' pulp into small broken fragments.

The part. .'cu]-.\r object of this invention is to afford a new :and improved means of securing the inner lining of the Jordan engine to the outer casing thereof, by the use of lagging or strips of wood or metal occupying positions between the outer Wall of the lining and inner wall of the casing and acting to bind the two structures to gcther in a firm and lasting manner. I prefer the use of wood for the logging or strips because its yieldability is helpful in more firmly binding the casing and lining together and because it will expand under the influence of the water used in the engine.

By preference the lagging or strips are located in dovetailed recesses or channes in the exterior surface of thelining, being thereby locked to the lining while the outside faces of the. lagging or strips lit with great firmness and binding ell'ect against the inner surface of the casing.

In the accompanying-drawings, Figure l is a longitudinal sectional view throu hthe casing and lining'of my improved fordan engine; Fig. 2 is a side elevation showing the outside construction of the lining; and Fig. 3 is a transverse sectional view of the casing and lining.

In the embodiment of the invention here shown the outer casing '1 comprises a frustoconical shell mounted. upon suitable supporting brackets 2. The enlarged end of this shell is closed by means of a removable cover 3, \vhile the reduced end is closed by means of it cover 4 integral with the casing. At 5 and 6 are shown hearings udupted to receive the inner rotatable member of the engine which is provided with teeth, the.

construction, however, being well known, and as it does not fonm a part of the'pres ent invention it lias been omitted. At 'T I have shown an inlet through which the T1111- terial to be treated is conducted to the engine, while 8 indicates the outlet therefor.

n engines of this nature there are provided fixed and movable knives, the movable knives being supported by .the rotatable member mentioned above, thefixed knives being usually mounted upon' the casing. lion-ever, these knives ar a subject to wear. and corrosion and it is essential that means he provided "for removing the same when worn without destroying or rendering the whole engine. useless. For this purpose the casing 1 has a plurality 'of removable sections 9, l0 and 11 substantiall as shown, constituting an inner lining. ach section is frusto-conical in form and adapted to lit within the casing. The sections are, of course, of increasing size from the reduced portion of the. casing to the'enlar ed portion thereof and are each provide with a plurality of cutting teeth or knives 12. Each of the sections ispmvhled with a. plurality 'of dovetailed grooves or channels 13 arranged around the periphery thereof and extending longitudinally These grooves taper toward the reduced end of: the section, as indicated at 14, and shown more clearly in Fig. 2. Fitted within each of the grooves is a strip or lagging 15. 'lhese strips are tapered to conform to the taper of the groove and the outer portions 1h thereof project beyond the outer surface 1''! of the section. In assembling the sections the smaller ones are inserted first with the laggings located within the The laggings are then driven home 'etween the surfaces 17 and the inner surface 18 of the casing.

It will be seen that the diameter of each of the sections is less than the diameter of the part of the casing in which it is located. Each section is also ii'itegral throughout and uon'expansible. When located in position the lagging actsas 11 wedge between the adjuccut surfaces of the casing and lining. In order to properly position the seetions ob the inner lining and to prevent the rotation thereof relatively to the outer casing each of thc sections is prr 'led witl; a suitable key 19 whii'zlrldcks it to tie adjacent casing. But, this key may not always he used.

By the construction abov described it will be seen that I have devised means for ruoves.

' r with an outer casing and an inner lining,

locking the parts together in a simple and rigid manner without appreciably unpairin the strength of the innerlimng.

ile I have shown and described one embodiment of the invention it will he understood that the same has been chosen for gfthe purposes of illustration only and that .1. do not desire to be limited to the details "of construction shown and described, for 19.

obyious modifications will occur to a person in the art.

Having thus fully described my inventic n," what I claim as new and desire to secure by Letters Patent, is:-

between the adjacent wallso ,1; In (Jordan engine, the combination,

interposed the casing and lining and acting to bind the two structures together. r

. 2. In a Jordan engine, thecombination, with an outer casing and an inner lining,

of longitudinal strips or higgin of strips or wood lagging interposed betweenthe adjacent walls of the casing and and acting to bind the two structures 3."In a Jordan engine, the combination, Withan outer casing and an inner lining, of longitudinal strips or lugging interposed between the adjacent walls of the casing and. lining embedded in one ofsaid structures and acting to bind both structures together.

4. In a Jordan engine, the combination, with an outer casin and an inner lining, the latterhaving c annels in its exterior surface, of strips or iugginginserted in said channels and bearing on theiroutcr faces against the inner ivull of the casing, to bind the two structures together.

5. In a Jordan engine the combination, with a casing and u lining having longitudinal dovetailed channels on its exterior of longitudinal lugging or strips insertetl one in each of said channels and binding on their outer; face against the interior surface of the casing.

6. In a Jordan engine, the combination, with a casing, and a lining composed of a series of sections, of loligitutlinal strips or lugging composing a like series, each section of the lining liaving a longitudinal series of the lugging or str ps between itnnd the'casing, to bind each lining section to the casing.

7. In a Jordan engine, the combination,

with a casing and a lining, of lagging or strips interposed between the two structures and acting to bind them together, keywuys in said structures, and n kev occupying said ways and further interlocking said structures.

8. In a Jordan engine,.the combination, with :1 casing and a lining, of logging or strips interposed between the two structures and acting to bind them together by the swelling of the lugging or strips when subjected to the influence of water used in the engine... I

In testimony whereof,1 afiix my signature.

CHARLES w. SHARTLE. 

